Mangano (born March 24, 1962) is an American politician from the state of New York.
A Republican, he was the County Executive from January 2010 to December 2017, and a former legislator in Nassau County, New York.
He was elected in 1995 and served seven terms as a county legislator.
In November 2009, he defeated incumbent Thomas R.
Suozzi for Nassau County Executive.
In November 2013, he was re-elected, again defeating Suozzi, by 59% to 41%.
On October 2016, a 13-count federal indictment for fraud and bribery was unsealed in the U.S.
District Court for the Eastern District of New York against Mangano, his wife Linda, and Oyster Bay Town Supervisor John Venditto.